Casement-window mounting



E. W. CUMMINGS CASEMENT WINDOW MOUNTING Filed Aug. 23. 1926 v INVENTQR for/e M4 Cum/"my! ATTORNEYS Patented Aug. 30, 1927.

w. cumnmes, orsAN'rA BARBARA, C IFORNIA.

V GASEMENT -WINDOW MOUNTING. I

. Application filed "August 23, 1926. Serial No. 130,895.

This invention relates to swingingly mounted sash frames, or what are generally known as casement window mountings, tho in fact applicable to swinging sash frames operating: in any plane. I

The objects of the invention are to provide mounting means of the character mentioned which is .particularly adapted for use with easementwindow frames,

curelyhold the window at I adjustment and which will be'adapted for operation on Windows without disturbing any-fly screen frameswhiehmay be in place at the time of'operation. In the drawings hereto Figure 1 is a perspective view of the lower part of a window frame and out-swinging sash equipped with my mounting and adjusted to partially opened position. I 3 V Figure 2 is a 'perspective view. of the lower part of afly screen infvertical alignment with the window frame of Figure rto indi cate how it would fit therein.

Figure 3 1s a reduced diagrammatic plan view of my mounting applied to a sash'to indicate its operation, while Figure 4 is a similar view showing the sash closed.

Figures 5 and :6 are respectively enlarged plan and side views of my adjusting screw and connections. I

Figures 7 and 8 show optional variations in construction of the adjusting screw.

Briefly described myinvention comprises a pair of parallel levers pivotally attached to the window frame at one end of the levers and at the other end to the swinging sashor in fact two such pair of levers, that for casement windows a pair be at the bottom of the sash and another pair at the top, or for transom type of windows a pair on opposite vertical edges thereof.

In either case but one pair of the levers require the adjustment control, and since they are alike in other respects the pair havingthe adjustment control only is shown in the drawings, it being understood that a similar air (of opposite hand as regards right anc left) is in alignment therewith at the opposite edge of the window frame, and that the adjustment control is omitted.

In the drawings 1 represents the window sill of a window frame 2 provided" on the far side with an outswinging casement sash 3. This sash 3. is supported at top and hotwhich will se various points of as it is intended tom by a pair of levers as at 4- and pivotallymounted at their ,inner ends to a. sill plate 6 screwed to the window frame or sill,

and at their outer ends to a sash plate 7 attached to the sash as shown. I

-.These levers are rigid enough to carry the full weight of the sash, thereby takingflthe PATENT 0 place of hinges, and when swinging the sash they levers tho with the, difference due to the lever 5 being shorter than the lever 4, that as the sash is swung outward at. the left side the right side is pulled inwardandrelarge main opening yet providing the function similarly to a pair of parallel: 2'

ytained nearer the sill than would otherwise Figure 3 indicate the full open position of the sash. I

I The levers have-their pivotal points Ye I together on the sash than on the window frame and one of the levers is suitably positioned or offset as at B so as not to interfere with the other lever when the sash is closed to the position of Figure 4. I Toveffect a control of the levers various artifices-may be resorted to, but my preferred arrangement is toprovide a screw 9 swivelly engaging a socket member 10 pivoted to the lever 4 and passing through a threaded nut 11-vertically pivoted to the plate 6 at 12.

This screw projects substantially at right angles to the sash inward into the room when the sash is closed, and in case of using a fly screen on the window the screw proj ects through a hole in the lower stile of the same.

Figure 2 indicates such a screen adapted to fit into the window frame against the stops 13 and providedwith a hole 14 adapted to pass over the screw, and since the holeis made suiiiciently large and the angular lateral movement of the screw. is very little near the nut 11, no interference results and the screen may either be left in place while operating the device or freely removed at any time by simply releasing the retaining buttons 15. r i

To operate the screw, any suitable smallcrank wrench is provided which will fit over the square end of the screw and will clear the inner edge of the window sill so that it may be revolved without striking the sill. Such a crank wrench is indicated in place on the screw at 16 and is shown in dotted lines so as not to confuse the drawing.

Several modifications in the screw mount- 7 with a special wrench, so that by revolving the sleeve nut 18 the -l' will be "forced back and forthto operate the sash. It is of course understood that the levers are te he made in right and left sets to provide' for windows swinging in either direction, also that they may be applied to trans sorrr type-windows, and tl'ia t in either case the mounting is positioned closer to the edge of the window controlled by the shorter lever so as to hold that edgerelatively close to the window frame at all times to red'uce the effect of heavy winds,

With my device as described the sash req-uiresno special fittings or shaping of its edges, nor does the frame or sill require any special construction of any kind, and the sash is firmly locked in all positions of adjustment against any attempt to move it.

- I claim: V

l. A mounting for a swinging window of the character described comprising a pair 2; A mounting for a swinging window of the character described: comprlsl'ng a: pair of spaced levers at each of opposite aligned points of the sash adjacent the edge ofthe same, each pair of levers being prvotedi'to the sash at oneend of the levers and to' the window frame at the opposite ends and with similar p votal points of both .pa'lrs o-f-levers in alignment, and screw IDGR'HSOPQTEIJtl VG on one of the levers for positively forcing same to swlng, for swinging" the. sash.

of spaced levers at eachlorf opposite aligned points of the sash adjacent the edge of same,

3'. StlllCtUl-Q as specified incl-aim 2 in which saidi screw means is operative through an opening." provided in a screen. firame placed in the window frame.

l- A structure as specified in claim. 1 which a screw is provided with swivel'connecti'on' to one of said levers and'is supported on said frame. i V Y EARLE w. cUMMiNesi 

